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<a name="nl-manual"></a>12. Nulgrind: the minimal Valgrind tool</h1></div></div></div>
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<p><b>Table of Contents</b></p>
<dl class="toc"><dt><span class="sect1"><a href="nl-manual.html#nl-manual.overview">12.1. Overview</a></span></dt></dl>
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<p>To use this tool, you must specify
<code class="option">--tool=none</code> on the Valgrind
command line.</p>
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="nl-manual.overview"></a>12.1. Overview</h2></div></div></div>
<p>Nulgrind is the simplest possible Valgrind tool.  It performs no
instrumentation or analysis of a program, just runs it normally.  It is
mainly of use for Valgrind's developers for debugging and regression
testing.</p>
<p>Nonetheless you can run programs with Nulgrind.  They will run
roughly 5 times more slowly than normal, for no useful effect.  Note
that you need to use the option <code class="option">--tool=none</code> to run
Nulgrind (ie. not <code class="option">--tool=nulgrind</code>).</p>
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